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STMicroelectronics STM8S003F3P6TR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8S003F3P6TR 8-bit MCU, 16 MHz, 8 KB Flash, 20-TSSOP

MPNSTM8S003F3P6TR
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STMicroelectronics STM8S series 8-bit MCU, STM8S003F3P6TR, 16 MHz core, 8 KB Flash, 1 KB RAM, 128-byte EEPROM, 5-channel 10-bit ADC, I²C/SPI/UART/LIN, 2.95-5.5 V supply, -40°C to 85°C, 20-TSSOP package.

$1.2000Ref. price · indicative, final on quote
STMicroelectronics STM8S003F3P6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8S003F3P6TR specifications
ParameterValue
SeriesSTM8S
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.95V ~ 5.5V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size1K x 8
Core size8-Bit
EEPROM size128 x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)16
Core processorSTM8
Case20-TSSOP (0.173\", 4.40mm Width)
Data convertersA/D 5x10b
Program memory size8KB (8K x 8)

Product details

What this 8-bit MCU brings to the BOM

The STM8S003F3P6TR is an 8-bit MCU with an STM8 core clocked at 16 MHz. It has 8 KB Flash, 1 KB RAM, and 128 bytes of EEPROM.

8 KB Flash and 1 KB RAM — firmware capacity limits

The 8 KB Flash is the hard ceiling for your compiled code. A typical UART bootloader, a few GPIO toggles, and a LIN slave stack can fit, but you won't squeeze in a full Modbus RTU master plus a graphical LCD driver. The 1 KB RAM handles a few dozen bytes of stack plus modest buffers — plan your data structures accordingly. The 128-byte EEPROM is separate from Flash, so you can store calibration or configuration data without wearing the program memory.

Frequently asked questions

What is the operating voltage of STM8S003F3P6TR?

The supply voltage range is 2.95 V to 5.5 V, covering both 3.3 V and 5 V logic rails.

What is the difference between STM8S003F3P6TR and STM8S003F3P6?

The only difference is the packaging format: the STM8S003F3P6TR ships in Tape & Reel, while the STM8S003F3P6 comes in a tube or tray. The die, pinout, and electrical specifications are identical.